How To Guide SM-S918U S23 ULTRA/918U1 UNITED STATES FIRMWARE FLASHING

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butchieboy

Senior Member
Feb 15, 2012
9,977
5,662
springfield.il
Google Pixel 7 Pro
I know some joke around about updates being released. But when has a device got the update as soon as its released? Every time an update is announced the post about "where is it" starts. But like I said I know some here post that just to be funny.
 

EtherealRemnant

Senior Member
Sep 15, 2007
5,113
2,268
38
Denver, CO
OnePlus 9
Samsung Galaxy Watch 4
Or is that sm-s918u?
Seeing how this is the U1 model sold by Samsung, something you could have easily found out for yourself by Googling the model number, yes, this is the thread.

Putting SM-S918ULBFXAA into Google, first result points to Samsung.com:

Galaxy S23 Ultra. | Unlocked | 512GB | Sky Blue | Learn more. SM-S918U1 / SM-S918ULBFXAA.
 

Semitope

Senior Member
Apr 23, 2012
70
13
Seeing how this is the U1 model sold by Samsung, something you could have easily found out for yourself by Googling the model number, yes, this is the thread.

Putting SM-S918ULBFXAA into Google, first result points to Samsung.com:

Galaxy S23 Ultra. | Unlocked | 512GB | Sky Blue | Learn more. SM-S918U1 / SM-S918ULBFXAA.
🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️

completely missed the SM-S918U1. I had been doing a decent amount of searching.
 
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April ota on at&t u
 

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hyelton

Recognized Contributor
May 26, 2010
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What happens if you flash U1 while temp unlocked on T-Mobile? Will the unlock stick past the 30 days? I do know you can't temp unlock while on U1 which sucks. Only reason I havent went to U1 yet. My S22U I was able to get it unlocked, but T-Mobile wont budge now for requesting unlock unless fully paid off.
 

warriorvibhu

Inactive Recognized Developer
Aug 28, 2007
1,503
385
Somewhere Amazing
HTC One (m7)
LG V10
What happens if you flash U1 while temp unlocked on T-Mobile? Will the unlock stick past the 30 days? I do know you can't temp unlock while on U1 which sucks. Only reason I havent went to U1 yet. My S22U I was able to get it unlocked, but T-Mobile wont budge now for requesting unlock unless fully paid off.
Sim Unlock can not be made permanent or stick longer than allowed by Carrier regardless of what firmware you flash. Also Tmobile budges based on your standing and type of account. I have never had issues getting my devices unlocked but yeah i pay more than needed.
 

hyelton

Recognized Contributor
May 26, 2010
13,902
6,193
30
Wilmington
Sim Unlock can not be made permanent or stick longer than allowed by Carrier regardless of what firmware you flash. Also Tmobile budges based on your standing and type of account. I have never had issues getting my devices unlocked but yeah i pay more than needed.
12 lines, aged long standing account. Perm unlocked 10 or so phones in the last 3 years without issue. But something changed several months ago and they no longer will unless military/deployment.
 

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